Original post by: remacberlin ,
Sounds crazy, but take the logicboard out again, wrap it in tin foil and put in the oven baking it at approx. 130 degree centigrade for an hour or so. Let it cool down really slow (2-3 hours). This has nothing to do with a reflow job cause the themps are much too low. But it helps to dissolve any resident moist/stain. I rescued a few dead machines that way.